This is a genuine Nikon sync terminal cap. This is a set of sync terminal caps and 10-pin terminal caps that can be used with Nikon SLR cameras. How about for protecting exposed contacts or for dealing with deterioration of the rubber? <Compatible Products> D3, D2XS, D2X, D2HS, D2H, D1X, D1H, D1, D300, D200, F6, F5, F100, F90X, F90, etc. Please understand that this is a used item from a private seller, and those who are concerned about minor stains or scratches should refrain from bidding. No claims, no returns.